Chemical analysis and psychological effects of wood odor

本研究探讨了木材气味对人体的生理、心理影响及其化学成分。1)利用语义差分法和结构模型对木材等多种材料的图像进行分析。木材的形象具有这样的结构，它与一些表达情感的物品联系在一起，并汇聚成一个情感物品。我们感觉木材的气味宜人、自然、温和。2)对环境温度周期性变化时内衬木材的密闭钢箱内散发的木材气味进行了化学分析。木臭的化学成分由11种单萜和3种倍半萜组成。3)通过随机负变异（CNV）和脑电波研究木材气味对认知水平的影响。木材气味降低了CNV的振幅，增加了α波的幅度。从这些结果来看，很明显，在存在木材气味的情况下，意识水平降低了，达到了镇静效果。

This study deals with psychological and physiological effects of wood odor on man as well as its chemical constituent.1) The images of various materials including wood were analyzed by the semantic differential method and the structural model. The image of wood has the structure where association bigins with some items expressing feeling and converges to an emotional item. we feel the wood odor pleasant, natural and mild.2) The chemical analysis of wood odor emitted in a closed steel box lined with wood when its ambient temperature was changed periodically was carried out. The chemical constituent of wood odor consited eleven kinds of monoterpenes and three kinds of sesquiterpenes.3) The effects of wood odor on the awareness level was investigated by both contingent negative variation (CNV) and brain waves. The wood odor decreased the amplitude of CNV and increased alpha-wave in magnitude. From these results, it became clear that in the presence of wood odor awareness level is decreased and a calming effect is achieved.